CN208313228U - A kind of portable pipe external diameter measuring device - Google Patents
A kind of portable pipe external diameter measuring device Download PDFInfo
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- CN208313228U CN208313228U CN201821011537.8U CN201821011537U CN208313228U CN 208313228 U CN208313228 U CN 208313228U CN 201821011537 U CN201821011537 U CN 201821011537U CN 208313228 U CN208313228 U CN 208313228U
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Abstract
本实用新型公开了一种便携式管道外径测量装置，属于管道流量测量领域。该装置包括激光反射装置、立杆、滑块、激光发射器、滑杆和滑杆支架，激光反射装置安装在立杆上，立杆垂直安装在滑块上，滑块水平放置在由滑杆Ⅰ、滑杆Ⅱ和滑杆支架组成的滑动测量装置上；滑动测量装置可调整其高度，使滑杆Ⅰ、滑杆Ⅱ及滑杆支架处于水平位置；所述滑杆Ⅰ、滑杆Ⅱ可通过支撑调整座进行支撑。管道直径测量装置通过激光发射器、立杆、滑块及激光反射装置形成一个与管道中轴线垂直的平面。本实用新型装置可以快速准确的测量管道外径，同时能够准确确定管道两侧的对称点，结构简单，便携性好，特别适用于外夹式超声波流量计对大口径管道流量现场测量的需要。
The utility model discloses a portable pipe outer diameter measuring device, which belongs to the field of pipe flow measurement. The device includes a laser reflection device, a pole, a slider, a laser transmitter, a slider and a slider bracket. The laser reflection device is installed on the pole, the pole is vertically installed on the slider, and the slider is placed horizontally by the slider. Ⅰ, on the sliding measuring device composed of the sliding rod II and the sliding rod bracket; the height of the sliding measuring device can be adjusted so that the sliding rod I, the sliding rod II and the sliding rod bracket are in a horizontal position; the sliding rod I and the sliding rod II can be adjusted. It is supported by the support adjustment seat. The pipe diameter measuring device forms a plane perpendicular to the central axis of the pipe through a laser transmitter, a vertical rod, a slider and a laser reflection device. The device of the utility model can quickly and accurately measure the outer diameter of the pipeline, and at the same time can accurately determine the symmetrical points on both sides of the pipeline.
Description
Technical Field
The utility model belongs to the technical field of the pipeline flow measurement, concretely relates to portable pipeline external diameter measuring device.
Background
With the increasing shortage of water resources and the gradual increase of water resource cost, water conservation becomes an important measure for responding to the national comprehensive promotion of water-saving social construction of enterprises, and is also an important content for realizing sustainable development of enterprises. The water saving needs to be realized by comprehensively knowing the water quantity and the water quality of each water conveying and draining pipeline, ditch and the like in the enterprise, and the relation between the water taking, using and draining of each water using system is clear. Due to various reasons, the flow meters cannot be arranged on each pipeline and each ditch, so that a water balance test needs to be regularly carried out to master the development condition of water-saving work in time. A commonly used flow measuring instrument in water balance test is an external clamp type (portable) ultrasonic flowmeter. The external clamping type (portable) ultrasonic flowmeter has the characteristics of no influence of media and pressure in a pipeline, no damage to the pipeline, safety and reliability in the measuring process. According to the conditions of material, diameter, inner wall corrosion and the like of a pipeline, the outer diameter of the pipeline is firstly determined in the using process of the external clamp type ultrasonic flowmeter, and accurate measurement of the outer diameter of the pipeline is an important factor influencing the measurement accuracy. The conventional measurement of the outer diameter of the pipeline generally adopts a vernier caliper, a micrometer, a theodolite measurement method, a bow high chord length method and the like, and the measurement methods have the problems of complex instruments and troublesome conversion or overlarge and overweight size and difficult carrying of the measuring tool for the measurement of the large-diameter pipeline in practical application.
Chinese patent application CN200910035213.7 discloses a measuring unit of a portable general large-diameter measuring gauge, which comprises a body, a first positioning column and a second positioning column connected to two ends of the body, and a first fixing mechanism and a second fixing mechanism, wherein the outer side surfaces of the first positioning column and the second positioning column are cylindrical surfaces, and a series of measuring units are sequentially fixed end to end on the circumferential surface of an object to be measured, so as to measure the diameter of the circumferential surface of the object. This aspect is simple and theoretically can measure any large diameter, but for large diameter pipes it is difficult to ensure that all the gauges are on one plane.
Chinese patent application CN201420152382.5 discloses a major diameter micrometer, including arc support, regulator, the regulator includes sleeve, lead screw, adjusting nut and bearing block, and the sleeve vertical fixation is on this arc support, and this lead screw that is equipped with the external screw thread runs through this sleeve, and is close to this lead screw one end in this arc support centre of a circle and this bearing block of this adjusting nut screw thread accordant connection back, vertical connection. The regulator of a supporting is installed additional on this major diameter micrometer, can easily measure major diameter work piece, can not cause artificial error because of two people's strength discordance or exert oneself the staff fatigue for a long time, reduce the error. However, the device needs to replace the arc-shaped supports with different sizes for pipelines with different pipe diameters, and the operation is complex.
Chinese patent application CN201610660161.2 discloses a circular tube internal and external diameter measuring instrument, which comprises three rollers, two measuring arms and an angular displacement sensor, wherein the two measuring arms are rotatably connected, one of the rollers is arranged at the joint, the outer end parts of the two measuring arms are respectively provided with another roller, the rollers are fixed on the measuring arms through wheel shafts and can roll, and the distance between the wheel shaft holes of the two measuring arms is equal. The scheme is suitable for measuring the inner diameter and the outer diameter of the large-diameter circular pipe, but the measurement is indirect measurement, conversion is needed, and the measurement is troublesome.
Chinese patent application 201620687493.5 discloses a portable large-diameter measuring device and a method for calibrating measurement parameters thereof, wherein the large-diameter measuring device comprises a mounting box, three groups of laser displacement sensors, a wireless transceiver module and a lithium battery, wherein the three groups of laser displacement sensors, the wireless transceiver module and the lithium battery are mounted in the mounting box; the mounting box is arc-shaped, the three groups of laser displacement sensors are sequentially arranged according to the arc rotating direction of the mounting box, and light rays emitted by the three groups of laser displacement sensors penetrate through the inner arc surface of the mounting box and point to the arc center of the mounting box; although the device can carry out non-contact accurate measurement on the diameter of a large-scale rotary body workpiece on any occasion, the device is not suitable for measuring the outer diameter of a pipeline and is complicated in calculation.
Chinese patent application CN201620600407.2 discloses a major diameter excircle measuring tool, the length of main measuring tape is adjustable, but the both ends of main measuring tape demountable installation respectively has left cardboard and right cardboard, and the card of left cardboard is held the face and is held a parallel arrangement with the card of right cardboard, demountable installation has the percentage table on the right cardboard, and the gauge head of percentage table stretches out the card of right cardboard and holds the face perpendicular setting with the card of left cardboard. Although the detection measuring tool can obtain the machining size by directly detecting the excircle and does not need to be converted by other measuring tools, the indirect measurement error is eliminated, the clamping plate needs to be replaced for pipelines with different diameters, and meanwhile, the position determination of the dial indicator also has uncertainty and is troublesome to operate.
Chinese patent application CN201620687493.5 discloses a major diameter cambered surface external diameter measuring device, comprises volume frame, adjustable spacing gauge stick base and percentage table, and the volume frame is half-circular arc structure, and adjustable spacing gauge stick assembles on adjustable spacing gauge stick base and fixes at the both ends of volume frame through welding mode, and the percentage table sets up the both ends at the volume frame through the percentage table frame. The device can measure major diameter cambered surface external diameter to but direct reading, but the device need be equipped with different quantums according to different pipe diameters, and the device is comparatively difficult to the alignment of external diameter.
Chinese patent application CN201720263478.2 describes a pipeline diameter measuring device with adjustable range, which comprises a fixed ruler, a movable ruler, a fixed rod and a movable rod, wherein the length of the four rulers (rods) is adjusted to form a figure similar to a square shape, so as to determine the measuring point. However, the main problems that the fixed rod and the movable rod are both square telescopic rods, when a large-diameter pipeline is measured, the widths of the fixed rod and the movable rod are different along with the extension of the telescopic rods, the contact points of the fixed rod and the movable rod with the pipeline are not in circular symmetry, and certain deviation exists in measurement.
Factors influencing the measurement accuracy of the external clamp type ultrasonic flowmeter are important influencing factors, namely the accurate selection of the installation point position, besides the outer diameter of the pipeline. The external clip type ultrasonic flow meter generally performs flow measurement by using a V method, a Z method, or the like. The V-method measurement is to install two sensors at the same side of the pipeline to be measured for measurement, and the two sensors are often installed on a scale track to ensure that the central axial plane of the two sensors and the central axis of the pipeline to be measured are on the same plane, so that the V-method measurement is generally suitable for the measurement of small-diameter pipelines. The V method has the defects that the pipeline with serious scale is weak in conducted signal or has no conducted signal, the measurement precision is low, and the correct medium flow value in the pipeline cannot be reflected. The Z-method measurement is that two sensors are respectively positioned at two sides of a pipeline, the position of one sensor is firstly determined, then another point is measured out at the horizontal position according to the installation distance, and then the symmetrical point of the point at the other side of the pipeline is measured. The Z method has the advantages of strong transmission signal and suitability for measuring fluid in a large-caliber pipeline. However, one problem of the measurement by the Z method is that two sensors are separately disposed on two sides of a pipeline, and it is difficult to ensure that two measuring points and a central axis of the pipeline are in a same plane, so that during the test, a signal is weak or no signal can be received, the position of a probe needs to be frequently adjusted, time and labor are wasted, and especially, the measurement of a large-diameter pipeline with a length greater than DN600 is influenced.
The installation methods of the V and Z methods of ultrasonic flow meter probes are described in schroemeria and gaojiange (industrial metrology, 2004, vol 14, No. 5). Firstly, making standard paper, drawing a marking line on a paper tape, then winding the standard paper around a pipe, extending the marking line of the standard paper, drawing a straight line on the pipe, and then drawing a circumferential line on the pipe along the standard paper, wherein the circumferential line is intersected with the extension line of the marking line. When the V method is adopted for installation, the device position of one probe is fixed on the extension line, and then the position of the other probe is measured; when the installation is carried out by adopting the Z method, a circumferential line is drawn on the pipeline along the other side of the standard paper, the circumferential line is intersected with the extension line of the original standard line, the standard paper moves along the circumference on the basis of a straight line of two points intersected with the standard line, the marking line on the standard paper is extended again at the circumference of the 1/2 probe, the straight line is drawn on the pipeline, and the marking line is intersected with the two circumferential lines on the pipeline, so that the installation position of the Z method can be determined. Although the method is simple, the paper tape is easy to damage in the operation process, and the paper tape can not be completely attached to a pipeline to cause inaccurate measurement for an approximately straight pipe with a slight radian.
The Chinese patent application CN201220205029.X introduces an ultrasonic probe mounting and fixing clamp, two magnetic force bases are connected together through a track scale, and the device is suitable for V-method measurement and not suitable for Z-method measurement.
Chinese patent application CN201320065430.2 introduces a portable ultrasonic flowmeter witnessed inspections Z method locator, the frame that comprises first frame, second frame, third frame and fourth frame, four frames all can stretch out and draw bar have length scale. The device can improve the detection timeliness of small-diameter pipelines, but the device uses the telescopic pull rod, and in use, the problems of large operation difficulty, easy deformation of the device, inaccurate positioning and the like exist in the measurement of large-diameter pipelines.
SUMMERY OF THE UTILITY MODEL
To the problem that present outer clamp formula ultrasonic flowmeter exists when carrying out heavy-calibre pipeline flow measurement, the utility model provides a portable pipeline external diameter measuring device when outer clamp formula ultrasonic flowmeter carries out heavy-calibre pipeline flow test can improve measuring result's accuracy.
The utility model discloses a following technical scheme realizes:
a portable pipeline outer diameter measuring device comprises two laser reflection devices, two upright posts, two sliding blocks, two laser transmitters, a sliding rod I, a sliding rod II and a sliding rod support; wherein,
each laser reflection device is arranged on a corresponding upright rod, the upright rods are vertically arranged on corresponding sliding blocks, and the sliding blocks are horizontally arranged on a sliding measurement device consisting of a sliding rod I, a sliding rod II and a sliding rod bracket; the height of the sliding measuring device can be adjusted, so that the sliding rod I, the sliding rod II and the sliding rod support are positioned at horizontal positions; the sliding rod I and the sliding rod II are supported through a support adjusting seat;
the upper part of the sliding block is provided with a scale pointer, and the central position of the upper part of the sliding block is provided with a screw hole which is matched with the end of the hollow stud of the upright rod; a screw hole is formed in the center of the lower part of the sliding block, the central axis of the lower screw hole is superposed with the central axis of the upper screw hole, and the upper screw hole and the lower screw hole are communicated; a screw hole at the lower part of the sliding block is matched with the laser emitter, and a power supply box and a switch of the laser emitter are fixed on the sliding block; the laser reflection device consists of a laser reflector and a base, wherein the base is a hollow stud, and the laser reflector is arranged at the top of the base;
when the device is used, the fixed sliding measuring device is placed below a pipeline to be measured and is vertical to the pipeline to be measured, a laser transmitter power supply is turned on, the angle of a laser reflection device is adjusted, laser on one side of the pipeline to be measured is reflected by the laser reflection device to enter a hollow pipeline formed by the laser reflection device, a vertical rod and a sliding block on the other side of the pipeline to be measured, a plane vertical to the central axis of the pipeline to be measured is formed, then the sliding block on one side of the pipeline to be measured is adjusted, the vertical rod is made to contact the outer wall of the pipeline to be measured, then the sliding block on the other side of the pipeline to be measured is adjusted, the vertical rod is made to contact the outer wall of the; the contact points of the vertical rod and the two sides of the pipeline to be detected are the symmetrical points of the two sides of the pipeline to be detected.
The utility model discloses a further improvement lies in, and the laser mirror personally submits 45 contained angles with base top level.
The utility model is further improved in that the vertical rod is a hollow straight rod, one end of the vertical rod is a screw hole, the other end of the vertical rod is a hollow stud, a base stud of the laser reflection device is matched with the vertical rod screw hole, and the hollow stud end of the vertical rod is matched with the screw hole; the upright stanchion is made of metal or rigid plastic.
The utility model is further improved in that the slide block is provided with a slide supporting leg with a locking device;
the middle axial surface of the sliding block is overlapped with the central axis of the vertical rod and is vertical to the central axis of the sliding rod I or the central axis of the sliding rod II, and the scale pointer is fixed on the sliding block through a fixing stud.
The utility model discloses a further improvement lies in that laser emitter is cylindricly, has the external screw thread.
The utility model is further improved in that one end of the slide bar I is a screw hole, the other end is a stud, the stud is matched with the screw hole, and the central axis of the slide bar I is superposed with the screw holes at the two ends and the central axis of the stud; two ends of the sliding rod II are both screw holes which are matched with the studs of the sliding rod I, and the central axis of the sliding rod II is superposed with the central axes of the screw holes at the two ends of the sliding rod II; the slide bar I and the slide bar II are both provided with full-length scales.
The utility model discloses further improvement lies in, has placed on slide bar I or slide bar II and has removed the spirit level, removes the spirit level and has the half cylinder type trompil, forms a complete set with the slide bar external diameter.
The utility model is further improved in that the upper part of the slide bar bracket is provided with a level gauge, and the side part is provided with a round hole which is fastened with the slide bar I and the slide bar II through bolts; the lower part is provided with an adjusting support leg which is connected with the slide bar bracket through a screw hole.
The utility model discloses a further improvement lies in, and adjustment stabilizer blade one end is the double-screw bolt, and the other end is flat adjusting block.
The utility model discloses further improvement lies in, screw perforating hole, the coincidence of laser emitter axis about base and pole setting, slider of laser reflection device.
The utility model discloses following profitable technological effect has:
the utility model provides a pair of pipeline external diameter measuring device, measuring pipeline external diameter that can be quick accurate can the accurate point of symmetry of confirming the pipeline both sides simultaneously, on this basis, can solve two points when outer clamp formula ultrasonic flowmeter adopts the Z method test and confirm unsafe problem, the specially adapted heavy-calibre pipeline external diameter is measured and flow test. The utility model discloses simple structure, the portability is good, can satisfy the field survey needs.
Drawings
FIG. 1 is a schematic structural diagram of the device of the present invention;
fig. 2 is a front view of a slide of the apparatus of the present invention;
fig. 3 is a left side view of the slide of the apparatus of the present invention;
fig. 4 is a top view of the slide of the inventive apparatus;
fig. 5 is a front view of a slide measuring device of the apparatus of the present invention;
fig. 6 is a left side view of the slide measuring device of the apparatus of the present invention;
fig. 7 is a top view of a slide measuring device of the apparatus of the present invention;
FIG. 8 is a front view of a mobile level of the apparatus of the present invention;
FIG. 9 is a left side view of the mobile level of the apparatus of the present invention;
FIG. 10 is a top view of a mobile level of the apparatus of the present invention;
fig. 11 is a schematic view of the support adjustment seat of the device of the present invention.
In the figure: 1. the laser reflection device comprises a laser reflection device 2, a laser reflector 3, a base 4, a vertical rod 5, a sliding block 6, a sliding supporting foot 7, a laser emitter 8, a power box 9, a switch 10, a scale pointer 11, a fixing stud 12, a locking device 13, a sliding rod support 14, a gradienter 15, a bolt 16, a round hole 17, an adjusting supporting foot 18, a screw hole 19, a sliding rod I, a sliding rod II, a sliding rod 21, a sliding measuring device 22, a movable gradienter 23 and a supporting adjusting seat.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in figure 1, the utility model provides a pair of portable pipeline external diameter measuring device, including laser reflection device 1, pole setting 4, slider 5, laser emitter 7, slide bar I19, slide bar II 20 and slide bar support 13.
The laser reflection device 1 is composed of a laser reflector 2 and a base 3, the base 3 is a hollow stud, and the laser reflector 2 is installed on the top of the base 3 and forms an included angle of 45 degrees with the horizontal plane of the top of the base 3.
The upright stanchion 4 is a hollow straight pole, one end of the upright stanchion is a screw hole, the other end of the upright stanchion is a hollow stud, a stud of a base 3 of the laser reflection device 1 is matched with the screw hole of the upright stanchion 4, the hollow stud end of the upright stanchion 4 is matched with the screw hole of the upright stanchion, and a plurality of sections of upright stanchions 4 can be connected with each other through the screw hole; the upright stanchion 4 is made of metal or rigid plastic.
As shown in fig. 1-4, a screw hole is arranged at the center of the upper part of the sliding block 5 and is matched with the end of a hollow stud of the upright rod 4; a screw hole is formed in the center of the lower part of the sliding block 5, the central axis of the lower screw hole is superposed with the central axis of the upper screw hole, and the upper screw hole and the lower screw hole are communicated; a screw hole at the lower part of the sliding block 5 is matched with a laser emitter 7, and the laser emitter 7 is cylindrical and is provided with an external thread; the power supply box 8 and the switch 9 of the laser transmitter 7 are fixed on the sliding block 5. The sliding support foot 6 of the sliding block 5 is provided with a locking device 12. The upper part of the sliding block 5 is provided with a scale pointer 10, wherein the axial surface is superposed with the central axis of the upright stanchion 4 and is vertical to the central axis of the sliding rod I19 or the sliding rod II 20, and the scale pointer 10 is fixed on the sliding block 5 by a fixing stud 11.
As shown in fig. 5 to 11, one end of the slide bar i 19 is a screw hole, the other end is a stud, the stud is matched with the screw hole, and the central axis of the slide bar i 19 is overlapped with the screw holes at the two ends and the central axis of the stud; two ends of the sliding rod II 20 are screw holes which are matched with the studs of the sliding rod I19, and the central axis of the sliding rod II 20 is superposed with the central axes of the screw holes at the two ends of the sliding rod II; the slide bar I19 is marked with full length scales, starting from the screw hole end as a 0mm starting point and ending at the front end of the stud, and the length can be 500mm, 750mm or 1000mm as the optimization. The sliding rod II 20 is marked with full-length scales, and the scales are taken as 0mm scale marks from a screw hole at one end and are ended at a screw hole at the other end, and preferably, the length can be 500mm, 750mm or 1000 mm. A movable level instrument 22 can be placed on the sliding rod I19 or the sliding rod II 20, and the movable level instrument 22 is provided with a semi-cylindrical opening which is matched with the outer diameter of the sliding rod. The upper part of the slide bar bracket 13 is provided with a level gauge 14, the side part is provided with a round hole 16, and the level gauge is fastened with a slide bar I19 and a slide bar II 20 through bolts 15; the lower adjustment foot 17 is connected to the slide bar holder 13 by means of a screw hole 18. One end of the adjusting support leg 17 is a stud, and the other end is a flat bottom adjusting block.
The base 3 of the laser reflection device 1 is superposed with the vertical rod 4, the through hole of the upper and lower screw holes of the slide block 5 and the central axis of the laser emitter 7.
During measurement, the upper part of the sliding block 5 is sequentially provided with the upright rod 4 and the laser reflection device 1, and the lower part is provided with the laser emitter 7. Laser reflection device 1 passes through 3 double-screw bolts of base and installs in 4 screw holes of pole setting, and according to the difference of the pipeline height that awaits measuring, pole setting 4 can carry out interconnect between the multistage pole setting suitable height through the double-screw bolt of self and screw, and laser emitter 7 is installed in 5 lower part screw holes of slider, and laser emitter 7 passes through the wire and links to each other with power pack 8. The slide bar I19 can be connected with each other among a plurality of sections of slide bars through a self stud and a screw hole according to the different diameters of pipelines to be detected, the slide bar I19 is connected with the slide bar II 20 through the stud on the slide bar I19, and the connected slide bar I19 and the connected slide bar II 20 are fixed on the slide bar support 13 through bolts 15. The fixed sliding measurement device 21 is placed below the pipeline to be measured and is perpendicular to the pipeline to be measured, then the laser reflection device 1, the upright rod 4, the sliding block 5 and the laser emitter 7 which are connected are placed on the sliding measurement device 21 and located on one side of the pipeline to be measured, and meanwhile, the other set of laser reflection device 1, the upright rod 4 and the sliding block 5 are placed on the sliding measurement device 21 and located on the other side of the pipeline to be measured after being connected. A movable level gauge 22 is arranged above the slide bar I19 and the slide bar II 20, a supporting adjusting seat 23 can be arranged below the slide bar I19 and the slide bar II 20 according to requirements, and the adjusting support leg 17 and the supporting adjusting seat 23 are adjusted to ensure that the slide measuring device 21 is in a horizontal position. And adjusting the scale pointers 10 on the sliding blocks 5 at the two sides of the pipeline to be measured to enable the axial surface to be superposed with the central axis of the upright rod 4 and to be vertical to the central axis of the sliding rod I19 or the sliding rod II 20. The power supply of a laser transmitter 7 is turned on, the angle of a laser reflection device 1 is adjusted, laser on one side of a pipeline to be detected is reflected by a laser reflector 2 to enter the other side of the pipeline to be detected, the hollow pipeline is composed of the laser reflection device 1, a vertical rod 4 and a sliding block 5, a plane vertical to the central axis of the pipeline to be detected is formed, then the sliding block 5 on one side of the pipeline to be detected is adjusted, the vertical rod 4 is made to contact the outer wall of the pipeline to be detected, a locking device 12 is arranged on a locking sliding supporting leg 6, the laser reflection device 1, the vertical rod 4 and the sliding block 5 are kept fixed, then the sliding block 5 on the other side of the pipeline to be detected is. The outer diameter of the pipeline to be measured is the diameter of the vertical rod 4 subtracted from the distance between the scale pointers 10 on the sliding blocks 5 at the two ends of the pipeline to be measured. The contact points of the upright stanchion 4 and the two sides of the pipeline to be tested are the symmetrical points of the two sides of the pipeline to be tested.
In addition, it should be noted that the shapes of the components, the names of the components, and the like of the embodiments described in the present specification may be different, and the above description is only an example of the present invention. All the equivalent changes or simple changes made according to the structure, characteristics and principle of the utility model are included in the protection scope of the utility model. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (10)
1. A portable pipeline outer diameter measuring device is characterized by comprising two laser reflection devices (1), two upright rods (4), two sliding blocks (5), two laser transmitters (7), a sliding rod I (19), a sliding rod II (20) and a sliding rod support (13); wherein,
each laser reflection device (1) is arranged on a corresponding upright rod (4), the upright rods (4) are vertically arranged on corresponding sliding blocks (5), and the sliding blocks (5) are horizontally arranged on a sliding measurement device (21) consisting of a sliding rod I (19), a sliding rod II (20) and a sliding rod support (13); the height of the sliding measuring device (21) can be adjusted, so that the sliding rod I (19), the sliding rod II (20) and the sliding rod bracket (13) are positioned at horizontal positions; the sliding rod I (19) and the sliding rod II (20) are supported by a support adjusting seat (23);
the upper part of the sliding block (5) is provided with a scale pointer (10), the central position of the upper part of the sliding block (5) is provided with a screw hole which is matched with the end of the hollow stud of the upright rod (4); a screw hole is formed in the center of the lower part of the sliding block (5), the central axis of the lower screw hole is superposed with the central axis of the upper screw hole, and the upper screw hole and the lower screw hole are communicated; a screw hole at the lower part of the sliding block (5) is matched with the laser emitter (7), and a power supply box (8) and a switch (9) of the laser emitter (7) are fixed on the sliding block (5); the laser reflection device (1) is composed of a laser reflector (2) and a base (3), the base (3) is a hollow stud, and the laser reflector (2) is installed on the top of the base (3).
2. The portable device for measuring the outer diameter of the pipeline according to claim 1, wherein the laser reflector (2) forms an included angle of 45 degrees with the horizontal plane at the top of the base (3).
3. The portable pipeline outer diameter measuring device according to claim 1, wherein the upright (4) is a hollow straight rod, one end of the upright is a screw hole, the other end of the upright is a hollow stud, the stud of the base (3) of the laser reflection device (1) is matched with the screw hole of the upright (4), and the hollow stud end of the upright (4) is matched with the screw hole of the upright; the upright stanchion (4) is made of metal or rigid plastic.
4. A portable pipe outer diameter measuring device according to claim 1, characterized in that the sliding block (5) is provided with a sliding support foot (6) with a locking device (12);
the middle axial surface of the sliding block (5) is superposed with the central axis of the upright rod (4) and is vertical to the central axis of the sliding rod I (19) or the sliding rod II (20), and the scale pointer (10) is fixed on the sliding block (5) through a fixing stud (11).
5. A portable pipe outer diameter measuring device according to claim 1, wherein the laser transmitter (7) is cylindrical with external threads.
6. The portable pipeline outer diameter measuring device as claimed in claim 1, wherein one end of the sliding rod I (19) is a screw hole, the other end of the sliding rod I is a stud, the stud is matched with the screw hole, and a central axis of the sliding rod I (19) is coincided with screw holes and central axes of studs at two ends of the sliding rod I (19); both ends of the sliding rod II (20) are screw holes which are matched with the studs of the sliding rod I (19), and the central axis of the sliding rod II (20) is superposed with the central axes of the screw holes at both ends of the sliding rod II; the slide bar I (19) and the slide bar II (20) are both provided with full-length scales.
7. A portable pipe outer diameter measuring device according to claim 1, wherein a moving level gauge (22) is placed on the sliding rod i (19) or the sliding rod ii (20), and the moving level gauge (22) has a semi-cylindrical opening which is matched with the outer diameter of the sliding rod.
8. The portable pipeline outer diameter measuring device is characterized in that a level gauge (14) is arranged at the upper part of a sliding rod support (13), a round hole (16) is formed in the side part of the sliding rod support, and the sliding rod support is fastened with a sliding rod I (19) and a sliding rod II (20) through bolts (15); the lower part is provided with an adjusting support leg (17) and is connected with the slide bar bracket (13) through a screw hole (18).
9. The portable pipeline outer diameter measuring device is characterized in that one end of the adjusting support leg (17) is a stud, and the other end of the adjusting support leg is a flat-bottom adjusting block.
10. The portable pipeline outer diameter measuring device according to claim 1, wherein a base (3) of the laser reflection device (1) is overlapped with the vertical rod (4), the through holes of the upper and lower screw holes of the sliding block (5) and the central axis of the laser emitter (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821011537.8U CN208313228U (en) | 2018-06-28 | 2018-06-28 | A kind of portable pipe external diameter measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821011537.8U CN208313228U (en) | 2018-06-28 | 2018-06-28 | A kind of portable pipe external diameter measuring device |
Publications (1)
| Publication Number | Publication Date |
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| CN208313228U true CN208313228U (en) | 2019-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821011537.8U Expired - Fee Related CN208313228U (en) | 2018-06-28 | 2018-06-28 | A kind of portable pipe external diameter measuring device |
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| Country | Link |
|---|---|
| CN (1) | CN208313228U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108844477A (en) * | 2018-06-28 | 2018-11-20 | 西安交通大学 | A kind of portable pipe external diameter measuring device |
| CN113899287A (en) * | 2021-11-09 | 2022-01-07 | 中国建筑第六工程局有限公司 | Hollow pile error-difference-prevention measuring equipment |
-
2018
- 2018-06-28 CN CN201821011537.8U patent/CN208313228U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108844477A (en) * | 2018-06-28 | 2018-11-20 | 西安交通大学 | A kind of portable pipe external diameter measuring device |
| CN108844477B (en) * | 2018-06-28 | 2024-04-02 | 西安交通大学 | Portable pipeline external diameter measuring device |
| CN113899287A (en) * | 2021-11-09 | 2022-01-07 | 中国建筑第六工程局有限公司 | Hollow pile error-difference-prevention measuring equipment |
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Granted publication date: 20190101 Termination date: 20210628 |